1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2021 Rubicon Communications, LLC (Netgate) 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_inet.h" 32 #include "opt_inet6.h" 33 34 #include <sys/param.h> 35 #include <sys/errno.h> 36 #include <sys/limits.h> 37 #include <sys/queue.h> 38 #include <sys/systm.h> 39 40 #include <netpfil/pf/pf_nv.h> 41 42 #define PF_NV_IMPL_UINT(fnname, type, max) \ 43 int \ 44 pf_nv ## fnname ## _opt(const nvlist_t *nvl, const char *name, \ 45 type *val, type dflt) \ 46 { \ 47 uint64_t raw; \ 48 if (! nvlist_exists_number(nvl, name)) { \ 49 *val = dflt; \ 50 return (0); \ 51 } \ 52 raw = nvlist_get_number(nvl, name); \ 53 if (raw > max) \ 54 return (ERANGE); \ 55 *val = (type)raw; \ 56 return (0); \ 57 } \ 58 int \ 59 pf_nv ## fnname(const nvlist_t *nvl, const char *name, type *val) \ 60 { \ 61 uint64_t raw; \ 62 if (! nvlist_exists_number(nvl, name)) \ 63 return (EINVAL); \ 64 raw = nvlist_get_number(nvl, name); \ 65 if (raw > max) \ 66 return (ERANGE); \ 67 *val = (type)raw; \ 68 return (0); \ 69 } \ 70 int \ 71 pf_nv ## fnname ## _array(const nvlist_t *nvl, const char *name, \ 72 type *array, size_t maxelems, size_t *nelems) \ 73 { \ 74 const uint64_t *n; \ 75 size_t nitems; \ 76 bzero(array, sizeof(type) * maxelems); \ 77 if (! nvlist_exists_number_array(nvl, name)) \ 78 return (EINVAL); \ 79 n = nvlist_get_number_array(nvl, name, &nitems); \ 80 if (nitems != maxelems) \ 81 return (E2BIG); \ 82 if (nelems != NULL) \ 83 *nelems = nitems; \ 84 for (size_t i = 0; i < nitems; i++) { \ 85 if (n[i] > max) \ 86 return (ERANGE); \ 87 array[i] = (type)n[i]; \ 88 } \ 89 return (0); \ 90 } \ 91 void \ 92 pf_ ## fnname ## _array_nv(nvlist_t *nvl, const char *name, \ 93 const type *numbers, size_t count) \ 94 { \ 95 uint64_t tmp; \ 96 for (size_t i = 0; i < count; i++) { \ 97 tmp = numbers[i]; \ 98 nvlist_append_number_array(nvl, name, tmp); \ 99 } \ 100 } 101 102 int 103 pf_nvbool(const nvlist_t *nvl, const char *name, bool *val) 104 { 105 if (! nvlist_exists_bool(nvl, name)) 106 return (EINVAL); 107 108 *val = nvlist_get_bool(nvl, name); 109 110 return (0); 111 } 112 113 int 114 pf_nvbinary(const nvlist_t *nvl, const char *name, void *data, 115 size_t expected_size) 116 { 117 const uint8_t *nvdata; 118 size_t len; 119 120 bzero(data, expected_size); 121 122 if (! nvlist_exists_binary(nvl, name)) 123 return (EINVAL); 124 125 nvdata = (const uint8_t *)nvlist_get_binary(nvl, name, &len); 126 if (len > expected_size) 127 return (EINVAL); 128 129 memcpy(data, nvdata, len); 130 131 return (0); 132 } 133 134 PF_NV_IMPL_UINT(uint8, uint8_t, UINT8_MAX); 135 PF_NV_IMPL_UINT(uint16, uint16_t, UINT16_MAX); 136 PF_NV_IMPL_UINT(uint32, uint32_t, UINT32_MAX); 137 PF_NV_IMPL_UINT(uint64, uint64_t, UINT64_MAX); 138 139 int 140 pf_nvint(const nvlist_t *nvl, const char *name, int *val) 141 { 142 int64_t raw; 143 144 if (! nvlist_exists_number(nvl, name)) 145 return (EINVAL); 146 147 raw = nvlist_get_number(nvl, name); 148 if (raw > INT_MAX || raw < INT_MIN) 149 return (ERANGE); 150 151 *val = (int)raw; 152 153 return (0); 154 } 155 156 int 157 pf_nvstring(const nvlist_t *nvl, const char *name, char *str, size_t maxlen) 158 { 159 int ret; 160 161 if (! nvlist_exists_string(nvl, name)) 162 return (EINVAL); 163 164 ret = strlcpy(str, nvlist_get_string(nvl, name), maxlen); 165 if (ret >= maxlen) 166 return (EINVAL); 167 168 return (0); 169 } 170 171 static int 172 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *paddr) 173 { 174 return (pf_nvbinary(nvl, "addr", paddr, sizeof(*paddr))); 175 } 176 177 static nvlist_t * 178 pf_addr_to_nvaddr(const struct pf_addr *paddr) 179 { 180 nvlist_t *nvl; 181 182 nvl = nvlist_create(0); 183 if (nvl == NULL) 184 return (NULL); 185 186 nvlist_add_binary(nvl, "addr", paddr, sizeof(*paddr)); 187 188 return (nvl); 189 } 190 191 static int 192 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 193 { 194 int error = 0; 195 196 bzero(mape, sizeof(*mape)); 197 PFNV_CHK(pf_nvuint8(nvl, "offset", &mape->offset)); 198 PFNV_CHK(pf_nvuint8(nvl, "psidlen", &mape->psidlen)); 199 PFNV_CHK(pf_nvuint16(nvl, "psid", &mape->psid)); 200 201 errout: 202 return (error); 203 } 204 205 static nvlist_t * 206 pf_mape_to_nvmape(const struct pf_mape_portset *mape) 207 { 208 nvlist_t *nvl; 209 210 nvl = nvlist_create(0); 211 if (nvl == NULL) 212 return (NULL); 213 214 nvlist_add_number(nvl, "offset", mape->offset); 215 nvlist_add_number(nvl, "psidlen", mape->psidlen); 216 nvlist_add_number(nvl, "psid", mape->psid); 217 218 return (nvl); 219 } 220 221 static int 222 pf_nvpool_to_pool(const nvlist_t *nvl, struct pf_kpool *kpool) 223 { 224 int error = 0; 225 226 bzero(kpool, sizeof(*kpool)); 227 228 PFNV_CHK(pf_nvbinary(nvl, "key", &kpool->key, sizeof(kpool->key))); 229 230 if (nvlist_exists_nvlist(nvl, "counter")) { 231 PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), 232 &kpool->counter)); 233 } 234 235 PFNV_CHK(pf_nvint(nvl, "tblidx", &kpool->tblidx)); 236 PFNV_CHK(pf_nvuint16_array(nvl, "proxy_port", kpool->proxy_port, 2, 237 NULL)); 238 PFNV_CHK(pf_nvuint8(nvl, "opts", &kpool->opts)); 239 240 if (nvlist_exists_nvlist(nvl, "mape")) { 241 PFNV_CHK(pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), 242 &kpool->mape)); 243 } 244 245 errout: 246 return (error); 247 } 248 249 static nvlist_t * 250 pf_pool_to_nvpool(const struct pf_kpool *pool) 251 { 252 nvlist_t *nvl; 253 nvlist_t *tmp; 254 255 nvl = nvlist_create(0); 256 if (nvl == NULL) 257 return (NULL); 258 259 nvlist_add_binary(nvl, "key", &pool->key, sizeof(pool->key)); 260 tmp = pf_addr_to_nvaddr(&pool->counter); 261 if (tmp == NULL) 262 goto error; 263 nvlist_add_nvlist(nvl, "counter", tmp); 264 nvlist_destroy(tmp); 265 266 nvlist_add_number(nvl, "tblidx", pool->tblidx); 267 pf_uint16_array_nv(nvl, "proxy_port", pool->proxy_port, 2); 268 nvlist_add_number(nvl, "opts", pool->opts); 269 270 tmp = pf_mape_to_nvmape(&pool->mape); 271 if (tmp == NULL) 272 goto error; 273 nvlist_add_nvlist(nvl, "mape", tmp); 274 nvlist_destroy(tmp); 275 276 return (nvl); 277 278 error: 279 nvlist_destroy(nvl); 280 return (NULL); 281 } 282 283 static int 284 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 285 { 286 int error = 0; 287 288 bzero(addr, sizeof(*addr)); 289 290 PFNV_CHK(pf_nvuint8(nvl, "type", &addr->type)); 291 PFNV_CHK(pf_nvuint8(nvl, "iflags", &addr->iflags)); 292 if (addr->type == PF_ADDR_DYNIFTL) 293 PFNV_CHK(pf_nvstring(nvl, "ifname", addr->v.ifname, 294 sizeof(addr->v.ifname))); 295 if (addr->type == PF_ADDR_TABLE) 296 PFNV_CHK(pf_nvstring(nvl, "tblname", addr->v.tblname, 297 sizeof(addr->v.tblname))); 298 299 if (! nvlist_exists_nvlist(nvl, "addr")) 300 return (EINVAL); 301 PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), 302 &addr->v.a.addr)); 303 304 if (! nvlist_exists_nvlist(nvl, "mask")) 305 return (EINVAL); 306 PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), 307 &addr->v.a.mask)); 308 309 switch (addr->type) { 310 case PF_ADDR_DYNIFTL: 311 case PF_ADDR_TABLE: 312 case PF_ADDR_RANGE: 313 case PF_ADDR_ADDRMASK: 314 case PF_ADDR_NOROUTE: 315 case PF_ADDR_URPFFAILED: 316 break; 317 default: 318 return (EINVAL); 319 } 320 321 errout: 322 return (error); 323 } 324 325 static nvlist_t * 326 pf_addr_wrap_to_nvaddr_wrap(const struct pf_addr_wrap *addr) 327 { 328 nvlist_t *nvl; 329 nvlist_t *tmp; 330 331 nvl = nvlist_create(0); 332 if (nvl == NULL) 333 return (NULL); 334 335 nvlist_add_number(nvl, "type", addr->type); 336 nvlist_add_number(nvl, "iflags", addr->iflags); 337 if (addr->type == PF_ADDR_DYNIFTL) 338 nvlist_add_string(nvl, "ifname", addr->v.ifname); 339 if (addr->type == PF_ADDR_TABLE) 340 nvlist_add_string(nvl, "tblname", addr->v.tblname); 341 342 tmp = pf_addr_to_nvaddr(&addr->v.a.addr); 343 if (tmp == NULL) 344 goto error; 345 nvlist_add_nvlist(nvl, "addr", tmp); 346 nvlist_destroy(tmp); 347 tmp = pf_addr_to_nvaddr(&addr->v.a.mask); 348 if (tmp == NULL) 349 goto error; 350 nvlist_add_nvlist(nvl, "mask", tmp); 351 nvlist_destroy(tmp); 352 353 return (nvl); 354 355 error: 356 nvlist_destroy(nvl); 357 return (NULL); 358 } 359 360 static int 361 pf_validate_op(uint8_t op) 362 { 363 switch (op) { 364 case PF_OP_NONE: 365 case PF_OP_IRG: 366 case PF_OP_EQ: 367 case PF_OP_NE: 368 case PF_OP_LT: 369 case PF_OP_LE: 370 case PF_OP_GT: 371 case PF_OP_GE: 372 case PF_OP_XRG: 373 case PF_OP_RRG: 374 break; 375 default: 376 return (EINVAL); 377 } 378 379 return (0); 380 } 381 382 static int 383 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 384 { 385 int error = 0; 386 387 if (! nvlist_exists_nvlist(nvl, "addr")) 388 return (EINVAL); 389 390 PFNV_CHK(pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), 391 &addr->addr)); 392 PFNV_CHK(pf_nvuint16_array(nvl, "port", addr->port, 2, NULL)); 393 PFNV_CHK(pf_nvuint8(nvl, "neg", &addr->neg)); 394 PFNV_CHK(pf_nvuint8(nvl, "port_op", &addr->port_op)); 395 396 PFNV_CHK(pf_validate_op(addr->port_op)); 397 398 errout: 399 return (error); 400 } 401 402 static nvlist_t * 403 pf_rule_addr_to_nvrule_addr(const struct pf_rule_addr *addr) 404 { 405 nvlist_t *nvl; 406 nvlist_t *tmp; 407 408 nvl = nvlist_create(0); 409 if (nvl == NULL) 410 return (NULL); 411 412 tmp = pf_addr_wrap_to_nvaddr_wrap(&addr->addr); 413 if (tmp == NULL) 414 goto error; 415 nvlist_add_nvlist(nvl, "addr", tmp); 416 nvlist_destroy(tmp); 417 pf_uint16_array_nv(nvl, "port", addr->port, 2); 418 nvlist_add_number(nvl, "neg", addr->neg); 419 nvlist_add_number(nvl, "port_op", addr->port_op); 420 421 return (nvl); 422 423 error: 424 nvlist_destroy(nvl); 425 return (NULL); 426 } 427 428 static int 429 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 430 { 431 int error = 0; 432 433 bzero(uid, sizeof(*uid)); 434 435 PFNV_CHK(pf_nvuint32_array(nvl, "uid", uid->uid, 2, NULL)); 436 PFNV_CHK(pf_nvuint8(nvl, "op", &uid->op)); 437 438 PFNV_CHK(pf_validate_op(uid->op)); 439 440 errout: 441 return (error); 442 } 443 444 static nvlist_t * 445 pf_rule_uid_to_nvrule_uid(const struct pf_rule_uid *uid) 446 { 447 nvlist_t *nvl; 448 449 nvl = nvlist_create(0); 450 if (nvl == NULL) 451 return (NULL); 452 453 pf_uint32_array_nv(nvl, "uid", uid->uid, 2); 454 nvlist_add_number(nvl, "op", uid->op); 455 456 return (nvl); 457 } 458 459 static int 460 pf_nvrule_gid_to_rule_gid(const nvlist_t *nvl, struct pf_rule_gid *gid) 461 { 462 /* Cheat a little. These stucts are the same, other than the name of 463 * the first field. */ 464 return (pf_nvrule_uid_to_rule_uid(nvl, (struct pf_rule_uid *)gid)); 465 } 466 467 int 468 pf_check_rule_addr(const struct pf_rule_addr *addr) 469 { 470 471 switch (addr->addr.type) { 472 case PF_ADDR_ADDRMASK: 473 case PF_ADDR_NOROUTE: 474 case PF_ADDR_DYNIFTL: 475 case PF_ADDR_TABLE: 476 case PF_ADDR_URPFFAILED: 477 case PF_ADDR_RANGE: 478 break; 479 default: 480 return (EINVAL); 481 } 482 483 if (addr->addr.p.dyn != NULL) { 484 return (EINVAL); 485 } 486 487 return (0); 488 } 489 490 491 int 492 pf_nvrule_to_krule(const nvlist_t *nvl, struct pf_krule *rule) 493 { 494 int error = 0; 495 496 #define ERROUT(x) ERROUT_FUNCTION(errout, x) 497 498 PFNV_CHK(pf_nvuint32(nvl, "nr", &rule->nr)); 499 500 if (! nvlist_exists_nvlist(nvl, "src")) 501 ERROUT(EINVAL); 502 503 error = pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), 504 &rule->src); 505 if (error != 0) 506 ERROUT(error); 507 508 if (! nvlist_exists_nvlist(nvl, "dst")) 509 ERROUT(EINVAL); 510 511 PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), 512 &rule->dst)); 513 514 if (nvlist_exists_string(nvl, "label")) { 515 PFNV_CHK(pf_nvstring(nvl, "label", rule->label[0], 516 sizeof(rule->label[0]))); 517 } else if (nvlist_exists_string_array(nvl, "labels")) { 518 const char *const *strs; 519 size_t items; 520 int ret; 521 522 strs = nvlist_get_string_array(nvl, "labels", &items); 523 if (items > PF_RULE_MAX_LABEL_COUNT) 524 ERROUT(E2BIG); 525 526 for (size_t i = 0; i < items; i++) { 527 ret = strlcpy(rule->label[i], strs[i], 528 sizeof(rule->label[0])); 529 if (ret >= sizeof(rule->label[0])) 530 ERROUT(E2BIG); 531 } 532 } 533 534 PFNV_CHK(pf_nvuint32_opt(nvl, "ridentifier", &rule->ridentifier, 0)); 535 PFNV_CHK(pf_nvstring(nvl, "ifname", rule->ifname, 536 sizeof(rule->ifname))); 537 PFNV_CHK(pf_nvstring(nvl, "qname", rule->qname, sizeof(rule->qname))); 538 PFNV_CHK(pf_nvstring(nvl, "pqname", rule->pqname, 539 sizeof(rule->pqname))); 540 PFNV_CHK(pf_nvstring(nvl, "tagname", rule->tagname, 541 sizeof(rule->tagname))); 542 PFNV_CHK(pf_nvuint16_opt(nvl, "dnpipe", &rule->dnpipe, 0)); 543 PFNV_CHK(pf_nvuint16_opt(nvl, "dnrpipe", &rule->dnrpipe, 0)); 544 PFNV_CHK(pf_nvuint32_opt(nvl, "dnflags", &rule->free_flags, 0)); 545 PFNV_CHK(pf_nvstring(nvl, "match_tagname", rule->match_tagname, 546 sizeof(rule->match_tagname))); 547 PFNV_CHK(pf_nvstring(nvl, "overload_tblname", rule->overload_tblname, 548 sizeof(rule->overload_tblname))); 549 550 if (! nvlist_exists_nvlist(nvl, "rpool")) 551 ERROUT(EINVAL); 552 PFNV_CHK(pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), 553 &rule->rpool)); 554 555 PFNV_CHK(pf_nvuint32(nvl, "os_fingerprint", &rule->os_fingerprint)); 556 557 PFNV_CHK(pf_nvint(nvl, "rtableid", &rule->rtableid)); 558 PFNV_CHK(pf_nvuint32_array(nvl, "timeout", rule->timeout, PFTM_MAX, NULL)); 559 PFNV_CHK(pf_nvuint32(nvl, "max_states", &rule->max_states)); 560 PFNV_CHK(pf_nvuint32(nvl, "max_src_nodes", &rule->max_src_nodes)); 561 PFNV_CHK(pf_nvuint32(nvl, "max_src_states", &rule->max_src_states)); 562 PFNV_CHK(pf_nvuint32(nvl, "max_src_conn", &rule->max_src_conn)); 563 PFNV_CHK(pf_nvuint32(nvl, "max_src_conn_rate.limit", 564 &rule->max_src_conn_rate.limit)); 565 PFNV_CHK(pf_nvuint32(nvl, "max_src_conn_rate.seconds", 566 &rule->max_src_conn_rate.seconds)); 567 PFNV_CHK(pf_nvuint32(nvl, "prob", &rule->prob)); 568 PFNV_CHK(pf_nvuint32(nvl, "cuid", &rule->cuid)); 569 PFNV_CHK(pf_nvuint32(nvl, "cpid", &rule->cpid)); 570 571 PFNV_CHK(pf_nvuint16(nvl, "return_icmp", &rule->return_icmp)); 572 PFNV_CHK(pf_nvuint16(nvl, "return_icmp6", &rule->return_icmp6)); 573 574 PFNV_CHK(pf_nvuint16(nvl, "max_mss", &rule->max_mss)); 575 PFNV_CHK(pf_nvuint16(nvl, "scrub_flags", &rule->scrub_flags)); 576 577 if (! nvlist_exists_nvlist(nvl, "uid")) 578 ERROUT(EINVAL); 579 PFNV_CHK(pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), 580 &rule->uid)); 581 582 if (! nvlist_exists_nvlist(nvl, "gid")) 583 ERROUT(EINVAL); 584 PFNV_CHK(pf_nvrule_gid_to_rule_gid(nvlist_get_nvlist(nvl, "gid"), 585 &rule->gid)); 586 587 PFNV_CHK(pf_nvuint32(nvl, "rule_flag", &rule->rule_flag)); 588 PFNV_CHK(pf_nvuint8(nvl, "action", &rule->action)); 589 PFNV_CHK(pf_nvuint8(nvl, "direction", &rule->direction)); 590 PFNV_CHK(pf_nvuint8(nvl, "log", &rule->log)); 591 PFNV_CHK(pf_nvuint8(nvl, "logif", &rule->logif)); 592 PFNV_CHK(pf_nvuint8(nvl, "quick", &rule->quick)); 593 PFNV_CHK(pf_nvuint8(nvl, "ifnot", &rule->ifnot)); 594 PFNV_CHK(pf_nvuint8(nvl, "match_tag_not", &rule->match_tag_not)); 595 PFNV_CHK(pf_nvuint8(nvl, "natpass", &rule->natpass)); 596 597 PFNV_CHK(pf_nvuint8(nvl, "keep_state", &rule->keep_state)); 598 PFNV_CHK(pf_nvuint8(nvl, "af", &rule->af)); 599 PFNV_CHK(pf_nvuint8(nvl, "proto", &rule->proto)); 600 PFNV_CHK(pf_nvuint8(nvl, "type", &rule->type)); 601 PFNV_CHK(pf_nvuint8(nvl, "code", &rule->code)); 602 PFNV_CHK(pf_nvuint8(nvl, "flags", &rule->flags)); 603 PFNV_CHK(pf_nvuint8(nvl, "flagset", &rule->flagset)); 604 PFNV_CHK(pf_nvuint8(nvl, "min_ttl", &rule->min_ttl)); 605 PFNV_CHK(pf_nvuint8(nvl, "allow_opts", &rule->allow_opts)); 606 PFNV_CHK(pf_nvuint8(nvl, "rt", &rule->rt)); 607 PFNV_CHK(pf_nvuint8(nvl, "return_ttl", &rule->return_ttl)); 608 PFNV_CHK(pf_nvuint8(nvl, "tos", &rule->tos)); 609 PFNV_CHK(pf_nvuint8(nvl, "set_tos", &rule->set_tos)); 610 611 PFNV_CHK(pf_nvuint8(nvl, "flush", &rule->flush)); 612 PFNV_CHK(pf_nvuint8(nvl, "prio", &rule->prio)); 613 614 PFNV_CHK(pf_nvuint8_array(nvl, "set_prio", &rule->prio, 2, NULL)); 615 616 if (nvlist_exists_nvlist(nvl, "divert")) { 617 const nvlist_t *nvldivert = nvlist_get_nvlist(nvl, "divert"); 618 619 if (! nvlist_exists_nvlist(nvldivert, "addr")) 620 ERROUT(EINVAL); 621 PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvldivert, "addr"), 622 &rule->divert.addr)); 623 PFNV_CHK(pf_nvuint16(nvldivert, "port", &rule->divert.port)); 624 } 625 626 /* Validation */ 627 #ifndef INET 628 if (rule->af == AF_INET) 629 ERROUT(EAFNOSUPPORT); 630 #endif /* INET */ 631 #ifndef INET6 632 if (rule->af == AF_INET6) 633 ERROUT(EAFNOSUPPORT); 634 #endif /* INET6 */ 635 636 PFNV_CHK(pf_check_rule_addr(&rule->src)); 637 PFNV_CHK(pf_check_rule_addr(&rule->dst)); 638 639 return (0); 640 641 #undef ERROUT 642 errout: 643 return (error); 644 } 645 646 static nvlist_t * 647 pf_divert_to_nvdivert(const struct pf_krule *rule) 648 { 649 nvlist_t *nvl; 650 nvlist_t *tmp; 651 652 nvl = nvlist_create(0); 653 if (nvl == NULL) 654 return (NULL); 655 656 tmp = pf_addr_to_nvaddr(&rule->divert.addr); 657 if (tmp == NULL) 658 goto error; 659 nvlist_add_nvlist(nvl, "addr", tmp); 660 nvlist_destroy(tmp); 661 nvlist_add_number(nvl, "port", rule->divert.port); 662 663 return (nvl); 664 665 error: 666 nvlist_destroy(nvl); 667 return (NULL); 668 } 669 670 nvlist_t * 671 pf_krule_to_nvrule(struct pf_krule *rule) 672 { 673 nvlist_t *nvl, *tmp; 674 675 nvl = nvlist_create(0); 676 if (nvl == NULL) 677 return (nvl); 678 679 nvlist_add_number(nvl, "nr", rule->nr); 680 tmp = pf_rule_addr_to_nvrule_addr(&rule->src); 681 if (tmp == NULL) 682 goto error; 683 nvlist_add_nvlist(nvl, "src", tmp); 684 nvlist_destroy(tmp); 685 tmp = pf_rule_addr_to_nvrule_addr(&rule->dst); 686 if (tmp == NULL) 687 goto error; 688 nvlist_add_nvlist(nvl, "dst", tmp); 689 nvlist_destroy(tmp); 690 691 for (int i = 0; i < PF_SKIP_COUNT; i++) { 692 nvlist_append_number_array(nvl, "skip", 693 rule->skip[i].ptr ? rule->skip[i].ptr->nr : -1); 694 } 695 696 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++) { 697 nvlist_append_string_array(nvl, "labels", rule->label[i]); 698 } 699 nvlist_add_string(nvl, "label", rule->label[0]); 700 nvlist_add_number(nvl, "ridentifier", rule->ridentifier); 701 nvlist_add_string(nvl, "ifname", rule->ifname); 702 nvlist_add_string(nvl, "qname", rule->qname); 703 nvlist_add_string(nvl, "pqname", rule->pqname); 704 nvlist_add_number(nvl, "dnpipe", rule->dnpipe); 705 nvlist_add_number(nvl, "dnrpipe", rule->dnrpipe); 706 nvlist_add_number(nvl, "dnflags", rule->free_flags); 707 nvlist_add_string(nvl, "tagname", rule->tagname); 708 nvlist_add_string(nvl, "match_tagname", rule->match_tagname); 709 nvlist_add_string(nvl, "overload_tblname", rule->overload_tblname); 710 711 tmp = pf_pool_to_nvpool(&rule->rpool); 712 if (tmp == NULL) 713 goto error; 714 nvlist_add_nvlist(nvl, "rpool", tmp); 715 nvlist_destroy(tmp); 716 717 nvlist_add_number(nvl, "evaluations", 718 pf_counter_u64_fetch(&rule->evaluations)); 719 for (int i = 0; i < 2; i++) { 720 nvlist_append_number_array(nvl, "packets", 721 pf_counter_u64_fetch(&rule->packets[i])); 722 nvlist_append_number_array(nvl, "bytes", 723 pf_counter_u64_fetch(&rule->bytes[i])); 724 } 725 726 nvlist_add_number(nvl, "os_fingerprint", rule->os_fingerprint); 727 728 nvlist_add_number(nvl, "rtableid", rule->rtableid); 729 pf_uint32_array_nv(nvl, "timeout", rule->timeout, PFTM_MAX); 730 nvlist_add_number(nvl, "max_states", rule->max_states); 731 nvlist_add_number(nvl, "max_src_nodes", rule->max_src_nodes); 732 nvlist_add_number(nvl, "max_src_states", rule->max_src_states); 733 nvlist_add_number(nvl, "max_src_conn", rule->max_src_conn); 734 nvlist_add_number(nvl, "max_src_conn_rate.limit", 735 rule->max_src_conn_rate.limit); 736 nvlist_add_number(nvl, "max_src_conn_rate.seconds", 737 rule->max_src_conn_rate.seconds); 738 nvlist_add_number(nvl, "qid", rule->qid); 739 nvlist_add_number(nvl, "pqid", rule->pqid); 740 nvlist_add_number(nvl, "prob", rule->prob); 741 nvlist_add_number(nvl, "cuid", rule->cuid); 742 nvlist_add_number(nvl, "cpid", rule->cpid); 743 744 nvlist_add_number(nvl, "states_cur", 745 counter_u64_fetch(rule->states_cur)); 746 nvlist_add_number(nvl, "states_tot", 747 counter_u64_fetch(rule->states_tot)); 748 nvlist_add_number(nvl, "src_nodes", 749 counter_u64_fetch(rule->src_nodes)); 750 751 nvlist_add_number(nvl, "return_icmp", rule->return_icmp); 752 nvlist_add_number(nvl, "return_icmp6", rule->return_icmp6); 753 754 nvlist_add_number(nvl, "max_mss", rule->max_mss); 755 nvlist_add_number(nvl, "scrub_flags", rule->scrub_flags); 756 757 tmp = pf_rule_uid_to_nvrule_uid(&rule->uid); 758 if (tmp == NULL) 759 goto error; 760 nvlist_add_nvlist(nvl, "uid", tmp); 761 nvlist_destroy(tmp); 762 tmp = pf_rule_uid_to_nvrule_uid((const struct pf_rule_uid *)&rule->gid); 763 if (tmp == NULL) 764 goto error; 765 nvlist_add_nvlist(nvl, "gid", tmp); 766 nvlist_destroy(tmp); 767 768 nvlist_add_number(nvl, "rule_flag", rule->rule_flag); 769 nvlist_add_number(nvl, "action", rule->action); 770 nvlist_add_number(nvl, "direction", rule->direction); 771 nvlist_add_number(nvl, "log", rule->log); 772 nvlist_add_number(nvl, "logif", rule->logif); 773 nvlist_add_number(nvl, "quick", rule->quick); 774 nvlist_add_number(nvl, "ifnot", rule->ifnot); 775 nvlist_add_number(nvl, "match_tag_not", rule->match_tag_not); 776 nvlist_add_number(nvl, "natpass", rule->natpass); 777 778 nvlist_add_number(nvl, "keep_state", rule->keep_state); 779 nvlist_add_number(nvl, "af", rule->af); 780 nvlist_add_number(nvl, "proto", rule->proto); 781 nvlist_add_number(nvl, "type", rule->type); 782 nvlist_add_number(nvl, "code", rule->code); 783 nvlist_add_number(nvl, "flags", rule->flags); 784 nvlist_add_number(nvl, "flagset", rule->flagset); 785 nvlist_add_number(nvl, "min_ttl", rule->min_ttl); 786 nvlist_add_number(nvl, "allow_opts", rule->allow_opts); 787 nvlist_add_number(nvl, "rt", rule->rt); 788 nvlist_add_number(nvl, "return_ttl", rule->return_ttl); 789 nvlist_add_number(nvl, "tos", rule->tos); 790 nvlist_add_number(nvl, "set_tos", rule->set_tos); 791 nvlist_add_number(nvl, "anchor_relative", rule->anchor_relative); 792 nvlist_add_number(nvl, "anchor_wildcard", rule->anchor_wildcard); 793 794 nvlist_add_number(nvl, "flush", rule->flush); 795 nvlist_add_number(nvl, "prio", rule->prio); 796 797 pf_uint8_array_nv(nvl, "set_prio", &rule->prio, 2); 798 799 tmp = pf_divert_to_nvdivert(rule); 800 if (tmp == NULL) 801 goto error; 802 nvlist_add_nvlist(nvl, "divert", tmp); 803 nvlist_destroy(tmp); 804 805 return (nvl); 806 807 error: 808 nvlist_destroy(nvl); 809 return (NULL); 810 } 811 812 static int 813 pf_nvstate_cmp_to_state_cmp(const nvlist_t *nvl, struct pf_state_cmp *cmp) 814 { 815 int error = 0; 816 817 bzero(cmp, sizeof(*cmp)); 818 819 PFNV_CHK(pf_nvuint64(nvl, "id", &cmp->id)); 820 PFNV_CHK(pf_nvuint32(nvl, "creatorid", &cmp->creatorid)); 821 PFNV_CHK(pf_nvuint8(nvl, "direction", &cmp->direction)); 822 823 errout: 824 return (error); 825 } 826 827 int 828 pf_nvstate_kill_to_kstate_kill(const nvlist_t *nvl, 829 struct pf_kstate_kill *kill) 830 { 831 int error = 0; 832 833 bzero(kill, sizeof(*kill)); 834 835 if (! nvlist_exists_nvlist(nvl, "cmp")) 836 return (EINVAL); 837 838 PFNV_CHK(pf_nvstate_cmp_to_state_cmp(nvlist_get_nvlist(nvl, "cmp"), 839 &kill->psk_pfcmp)); 840 PFNV_CHK(pf_nvuint8(nvl, "af", &kill->psk_af)); 841 PFNV_CHK(pf_nvint(nvl, "proto", &kill->psk_proto)); 842 843 if (! nvlist_exists_nvlist(nvl, "src")) 844 return (EINVAL); 845 PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), 846 &kill->psk_src)); 847 if (! nvlist_exists_nvlist(nvl, "dst")) 848 return (EINVAL); 849 PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), 850 &kill->psk_dst)); 851 if (nvlist_exists_nvlist(nvl, "rt_addr")) { 852 PFNV_CHK(pf_nvrule_addr_to_rule_addr( 853 nvlist_get_nvlist(nvl, "rt_addr"), &kill->psk_rt_addr)); 854 } 855 856 PFNV_CHK(pf_nvstring(nvl, "ifname", kill->psk_ifname, 857 sizeof(kill->psk_ifname))); 858 PFNV_CHK(pf_nvstring(nvl, "label", kill->psk_label, 859 sizeof(kill->psk_label))); 860 PFNV_CHK(pf_nvbool(nvl, "kill_match", &kill->psk_kill_match)); 861 862 errout: 863 return (error); 864 } 865 866 static nvlist_t * 867 pf_state_key_to_nvstate_key(const struct pf_state_key *key) 868 { 869 nvlist_t *nvl, *tmp; 870 871 nvl = nvlist_create(0); 872 if (nvl == NULL) 873 return (NULL); 874 875 for (int i = 0; i < 2; i++) { 876 tmp = pf_addr_to_nvaddr(&key->addr[i]); 877 if (tmp == NULL) 878 goto errout; 879 nvlist_append_nvlist_array(nvl, "addr", tmp); 880 nvlist_destroy(tmp); 881 nvlist_append_number_array(nvl, "port", key->port[i]); 882 } 883 nvlist_add_number(nvl, "af", key->af); 884 nvlist_add_number(nvl, "proto", key->proto); 885 886 return (nvl); 887 888 errout: 889 nvlist_destroy(nvl); 890 return (NULL); 891 } 892 893 static nvlist_t * 894 pf_state_peer_to_nvstate_peer(const struct pf_state_peer *peer) 895 { 896 nvlist_t *nvl; 897 898 nvl = nvlist_create(0); 899 if (nvl == NULL) 900 return (NULL); 901 902 nvlist_add_number(nvl, "seqlo", peer->seqlo); 903 nvlist_add_number(nvl, "seqhi", peer->seqhi); 904 nvlist_add_number(nvl, "seqdiff", peer->seqdiff); 905 nvlist_add_number(nvl, "state", peer->state); 906 nvlist_add_number(nvl, "wscale", peer->wscale); 907 908 return (nvl); 909 } 910 911 nvlist_t * 912 pf_state_to_nvstate(const struct pf_kstate *s) 913 { 914 nvlist_t *nvl, *tmp; 915 uint32_t expire, flags = 0; 916 917 nvl = nvlist_create(0); 918 if (nvl == NULL) 919 return (NULL); 920 921 nvlist_add_number(nvl, "id", s->id); 922 nvlist_add_string(nvl, "ifname", s->kif->pfik_name); 923 nvlist_add_string(nvl, "orig_ifname", s->orig_kif->pfik_name); 924 925 tmp = pf_state_key_to_nvstate_key(s->key[PF_SK_STACK]); 926 if (tmp == NULL) 927 goto errout; 928 nvlist_add_nvlist(nvl, "stack_key", tmp); 929 nvlist_destroy(tmp); 930 931 tmp = pf_state_key_to_nvstate_key(s->key[PF_SK_WIRE]); 932 if (tmp == NULL) 933 goto errout; 934 nvlist_add_nvlist(nvl, "wire_key", tmp); 935 nvlist_destroy(tmp); 936 937 tmp = pf_state_peer_to_nvstate_peer(&s->src); 938 if (tmp == NULL) 939 goto errout; 940 nvlist_add_nvlist(nvl, "src", tmp); 941 nvlist_destroy(tmp); 942 943 tmp = pf_state_peer_to_nvstate_peer(&s->dst); 944 if (tmp == NULL) 945 goto errout; 946 nvlist_add_nvlist(nvl, "dst", tmp); 947 nvlist_destroy(tmp); 948 949 tmp = pf_addr_to_nvaddr(&s->rt_addr); 950 if (tmp == NULL) 951 goto errout; 952 nvlist_add_nvlist(nvl, "rt_addr", tmp); 953 nvlist_destroy(tmp); 954 955 nvlist_add_number(nvl, "rule", s->rule.ptr ? s->rule.ptr->nr : -1); 956 nvlist_add_number(nvl, "anchor", 957 s->anchor.ptr ? s->anchor.ptr->nr : -1); 958 nvlist_add_number(nvl, "nat_rule", 959 s->nat_rule.ptr ? s->nat_rule.ptr->nr : -1); 960 nvlist_add_number(nvl, "creation", s->creation); 961 962 expire = pf_state_expires(s); 963 if (expire <= time_uptime) 964 expire = 0; 965 else 966 expire = expire - time_uptime; 967 nvlist_add_number(nvl, "expire", expire); 968 969 for (int i = 0; i < 2; i++) { 970 nvlist_append_number_array(nvl, "packets", 971 s->packets[i]); 972 nvlist_append_number_array(nvl, "bytes", 973 s->bytes[i]); 974 } 975 976 nvlist_add_number(nvl, "creatorid", s->creatorid); 977 nvlist_add_number(nvl, "direction", s->direction); 978 nvlist_add_number(nvl, "state_flags", s->state_flags); 979 if (s->src_node) 980 flags |= PFSYNC_FLAG_SRCNODE; 981 if (s->nat_src_node) 982 flags |= PFSYNC_FLAG_NATSRCNODE; 983 nvlist_add_number(nvl, "sync_flags", flags); 984 985 return (nvl); 986 987 errout: 988 nvlist_destroy(nvl); 989 return (NULL); 990 } 991